How does the age of rock in the middle of the mid ocean ridge compare to the rock further away from the center?

¿cual es mas alta en baja california,la migracion o la inmigracion?

Which is not an example of a  cultural  bond found in a nation-state? a. a holiday traditionb. a common religionc. a favorite placed. a shared history

Suppose you had to resolve the problems believed to be caused by distance decay in russia. what would you suggest?